To evaluate the probiotic potential ex vivo, we performed the
invasion protection assay using HCT 116 colon cancer cells. We
found that DGK-17 had a protective role against invasion in HCT
116 cells. DGK-17 showed enhanced invasion protection against K.
pneumoniae 05K279 (5.99 CFU/ml), whereas CFCS showed significant
invasion protection on K. pneumoniae 05K279. In case of P.
aeruginosa 03K711, DGK-17 and CFCS showed similar invasive
protective activity Fig. 6.